Schluter ditra is specifically designed to allow the installation of ceramic and stone tile over any even and load bearing substrate.
Ditra mat installation video.
Schlüter ditra 25 is a polyethylene mat with square dovetailed recesses and an anchoring fleece laminated to the underside.
Schluter ditra heat integrates customizable comfortable electric floor warming with the functions associated with ditra.
Vapor barrier on crawl space floors according to regional building codes.
Areas of application over any even and structurally sound osb or.
Install over a wide range of substrates including plywood osb concrete gypsum heated floors etc.
Additional steps for waterproof application once the ditra membrane is in place and before any tile is set the next step is to cover the seams with an 8 wide layer of unmodified thin set centered on the seam.
In conjunction with tiled coverings schlüter ditra 25 forms an uncoupling waterproofing and vapour pressure equalisation layer.
As mentioned when you have to pick a tile up and re install it you will have to do this more than once the suction of the tile can pull up the ditra mat causing it to break the bond to the plywood.
Below is an official video from schluter that also outlines the installation process.
Floor warming ditra heat combines the flexibility of loose heating cables with the ease of installation of mat systems.
Made of polyethylene ditra and ditra xl serve as a waterproofing layer that protects moisture sensitive substrates such as plywood osb.
Legend essential significant helpful uncoupling.
For commercial and residential applications.
Easy to install and ready to receive tile immediately.
Uncoupling waterproofing vapor management and support to ensure a long lasting installation.
The integration of ditra s uncoupling waterproofing load distribution and vapor management functions makes consistent results viable.
Schluter ditra and ditra xl are specifically designed for ceramic and stone tile installations ditra and ditra xl provide uncoupling to prevent cracked tile and grout.
Install the ditra heat mat one day and install the electric heat wire a different day.
Again i think this is a bad idea.